2020 KENWORTH T800
9 recalls, 0 complaints - 37 TSBs
24V145000 Feb 23, 2024
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 ve... Read more
Consequence
Insufficient air volume can reduce braking performance and increase the risk of a crash.
Remedy
Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 24KWD.
23V717000 Oct 26, 2023
SEAT BELTS
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T660, 2018-2024 Kenworth T800 and W900 vehicles. An additional spacer may have been added to the joint that connects the seat to the seat belt tether and buckle, causing an unsecured connection.
Consequence
An unsecured seat belt connection may not properly restrain an occupant during a crash, increasing their risk of injury.
Remedy
Dealers will inspect and remove the additional spacer and replace the bolt, as necessary, free of charge. Owner letters were mailed March 20, 2024. Owners may contact PACCAR's customer service at 1-425-828-5888. PACCAR's number for this recall is 23KWK.
22V277000 Apr 25, 2022
STEERING:CRITICAL FASTENERS
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2018-2020 Kenworth T270, T370, T440, T470, T660, T680, T880, T800, W900, W990; and 2018-2020 Peterbilt 330, 337, 348, 365, 367, 389, 520, 567, and 579 vehicles. The Dana D-Series axle steer arm fasteners that attach the steering arm to the steering ... Read more
Consequence
Fastener failure can result in a loss of steering control, increasing the risk of a crash or injury.
Remedy
Dealers will replace and torque the steer arm fasteners, at no charge. Owner notification letters were mailed November 8, 2022. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 22 PBB and 22 KWB.
21V391000 May 26, 2021
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.
20V506000 Aug 26, 2020
POWER TRAIN:AXLE ASSEMBLY
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough t... Read more
Consequence
The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
Remedy
PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for... Read more
20V199000 Apr 6, 2020
SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lo... Read more
Consequence
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Remedy
PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer se... Read more
19V911000 Dec 19, 2019
POWER TRAIN:DRIVELINE:DRIVESHAFT
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T800, T880 and W990 and Peterbilt 348, 367, 389, 520, and 567 vehicles. The forward rear axle output shafts may have been improperly heat treated during manufacturing, possibly resulting in the shafts fracturing.
Consequence
If the rear axle output shaft fractures, the shaft or interaxle driveline could detach and become a road hazard, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will inspect and replace the output shafts, as necessary, free of charge. The recall began February 19, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall ar... Read more
19V340000 May 1, 2019
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Peterbilt 520 and 579 vehicles and Kenworth T680, T880 and W990 vehicles. The mirror glass may detach from the mirror carrier plate due to inadequate adhesion.
Consequence
If the mirror glass detaches, the driver may have reduced visibility and the mirror glass will become a road hazard that may strike another vehicle or pedestrian, increasing the risk of a crash or injury.
Remedy
PACCAR has notified owners, and dealers will inspect the upper mirror glass/mirror carrier, replacing it as necessary, free of charge. The recall began May 31, 2019. Kenworth owners may contact PACCAR customer service at 1-425-828-5888 and Peterbilt owners may call 1-940-591-4220. PACCAR's number... Read more
19V176000 Mar 5, 2019
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T680, T800, T880, W900 and W990 trucks. The rear axles may not contain oil.
Consequence
Without lubricating oil, the bearings, hub and axle shafts may wear, resulting in the separation of a wheel end from the axle, increasing the risk of a crash.
Remedy
Paccar will notify owners, and Kenworth dealers will inspect all of the rear axles for the presence of oil. If no oil is present, the wheels ends will be removed and the bearings, hub and axle shaft will be inspected for damage. If excessive wear or heat damage is evident, the components will be r... Read more
No complaints found for this vehicle.
Technical Service Bulletins, 2020 KENWORTH T800
37 manufacturer communications from 22 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 350000 EQUIPMENT | 6 |
| 060000 ENGINE AND ENGINE COOLING | 5 |
| 356000 EQUIPMENT ADAPTIVE/MOBILITY | 3 |
| 160000 STRUCTURE | 2 |
| 080000 FUEL SYSTEM, DIESEL | 2 |
| 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM | 2 |
| 118000 ELECTRICAL SYSTEM:SOFTWARE | 2 |
| 110000 ELECTRICAL SYSTEM | 2 |
24KWD
Apr 9, 2024
040000 SERVICE BRAKES, AIR
Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 ??A?A?Air Brake Systems??A?A?. This bulletin will be updated when repair parts and procedur
23KWK
Mar 1, 2024
350000 EQUIPMENT
Safety Recall Repair parts and procedures are now available. On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In
23KWK
Mar 1, 2024
220000 SEATS
Safety Recall Repair parts and procedures are now available. On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In
23KWK
Mar 1, 2024
150000 SEAT BELTS
Safety Recall Repair parts and procedures are now available. On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In
23KWK
Nov 28, 2023
220000 SEATS
Safety Recall Interim Notification On certain Kenworth model year 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, an additional spacer was installed on the seatbelt mounting assembly. In a severe colli
23KWK
Nov 28, 2023
150000 SEAT BELTS
Safety Recall Interim Notification On certain Kenworth model year 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, an additional spacer was installed on the seatbelt mounting assembly. In a severe colli
43-072
Jun 2, 2023
060000 ENGINE AND ENGINE COOLING
Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will
43-072
Jun 2, 2023
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will
E303
Jan 12, 2023
060000 ENGINE AND ENGINE COOLING
This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs. Broken oil valve tabs can cause oil flow obstruction to critical engine parts, resulting in serious engine damage.
45-064
Oct 18, 2022
060000 ENGINE AND ENGINE COOLING
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic c
E296
Aug 3, 2022
060000 ENGINE AND ENGINE COOLING
Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
22KWB
May 10, 2022
010000 STEERING
Safety Recall ??A?A? Interim Notification - The Dana D-Series front axle steer arm fasteners that attach the steer arm to the steering knuckle may fail, increasing the risk of a crash or injury. Repair information will be added when a repai
43-071
Sep 21, 2021
080000 FUEL SYSTEM, DIESEL
Fix-As-Fail a?? Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a veh
02-168
Sep 20, 2021
160000 STRUCTURE
Information Only - Rear axle Quarter Fenders with less than two inches of clearance between the top of the quarter fender and the bottom of the trailer/equipment are susceptible to damage. The lack of clearance could result in cracked/broke
21KWC
Jun 22, 2021
070000 FUEL SYSTEM, GASOLINE
Safety Recall a?? Cummins Fuel Rail Leak a?? NHTSA ID: 21V391 / TC: 2021-323, Cummins Recall: C2423.A Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks.A Undetected prolonged diesel fuel
02-160
Feb 10, 2021
130000 VISIBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
356000 EQUIPMENT ADAPTIVE/MOBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
350000 EQUIPMENT
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
136000 VISIBILITY:WINDSHIELD WIPER/WASHER
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
26-037
Dec 18, 2020
118000 ELECTRICAL SYSTEM:SOFTWARE
Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
26-037
Dec 18, 2020
356000 EQUIPMENT ADAPTIVE/MOBILITY
Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
26-037
Dec 18, 2020
100000 POWER TRAIN
Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
32-014
Oct 12, 2020
110000 ELECTRICAL SYSTEM
Fix-As-Fail a?? The Battery Management System (BMS) may report the incorrect battery condition. Additional diagnostics are available to correctly determine and repair the root cause of the issue.
14-027
Sep 25, 2020
350000 EQUIPMENT
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners.
14-027
Sep 25, 2020
160000 STRUCTURE
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners.
44-033
Jul 21, 2020
080000 FUEL SYSTEM, DIESEL
Non-Safety Campaign a?? The end cap welds on certain fuel tanks may not meet internal quality standards due to improper weld equipment settings. The fuel tanks will be replaced.
32-015
Jun 8, 2020
110000 ELECTRICAL SYSTEM
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplet
32-016
Mar 17, 2020
350000 EQUIPMENT
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
03-071
Dec 18, 2019
118000 ELECTRICAL SYSTEM:SOFTWARE
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
01-075
Nov 6, 2019
060000 ENGINE AND ENGINE COOLING
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB43-062
Sep 27, 2019
350000 EQUIPMENT
Information Only ??A?A? This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
TIB43-062
Sep 27, 2019
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Information Only ??A?A? This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
59-002
Jun 10, 2019
356000 EQUIPMENT ADAPTIVE/MOBILITY
Non Safety Campaign: Holland Series FW17 fifth wheel handles may remain in an unlocked position when coupling to a parked trailer.
59-002
Jun 10, 2019
211000 TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
Non Safety Campaign: Holland Series FW17 fifth wheel handles may remain in an unlocked position when coupling to a parked trailer.
59-002
Jun 10, 2019
170000 LATCHES/LOCKS/LINKAGES
Non Safety Campaign: Holland Series FW17 fifth wheel handles may remain in an unlocked position when coupling to a parked trailer.
43-060
May 3, 2019
350000 EQUIPMENT
Non-Safety Campaign - Certain chassis equipped with certain Goodyear tires received a Greenhouse Gas (GHG) label that does not reference the correct tire emissions identifier related to new rolling resistance data.
43-060
May 3, 2019
355100 EQUIPMENT:OTHER:LABELS
Non-Safety Campaign - Certain chassis equipped with certain Goodyear tires received a Greenhouse Gas (GHG) label that does not reference the correct tire emissions identifier related to new rolling resistance data.
KENWORTH T800 - All Years Overview
Complete safety history for the KENWORTH T800 across all model years (1987, 2025).
318
Total Recalls
49
Total Complaints
0
Investigations
5
Reported Crashes
7
Reported Fires
0
Reported Deaths
KENWORTH T800 - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.
| Year | Recalls | Complaints | |
|---|---|---|---|
| 2025 | 1 | 0 | View |
| 2024 | 4 | 0 | View |
| 2023 | 1 | 0 | View |
| 2022 | 1 | 0 | View |
| 2021 | 1 | 0 | View |
| 2020 (current) | 9 | 0 | |
| 2019 | 8 | 0 | View |
| 2018 | 11 | 1 | View |
| 2017 | 8 | 0 | View |
| 2016 | 12 | 1 | View |
| 2015 | 12 | 0 | View |
| 2014 | 12 | 0 | View |
| 2013 | 8 | 0 | View |
| 2012 | 10 | 1 | View |
| 2011 | 13 | 1 | View |
| 2010 | 11 | 1 | View |
| 2009 | 19 | 2 | View |
| 2008 | 25 | 2 | View |
| 2007 | 21 | 1 | View |
| 2006 | 13 | 4 | View |
| 2005 | 12 | 6 | View |
| 2004 | 12 | 3 | View |
| 2003 | 7 | 1 | View |
| 2002 | 6 | 0 | View |
| 2001 | 10 | 1 | View |
| 2000 | 10 | 6 | View |
| 1999 | 12 | 4 | View |
| 1998 | 8 | 1 | View |
| 1997 | 9 | 8 | View |
| 1996 | 8 | 1 | View |
| 1995 | 5 | 2 | View |
| 1994 | 3 | 2 | View |
| 1993 | 1 | 0 | View |
| 1992 | 1 | 0 | View |
| 1991 | 4 | 0 | View |
| 1990 | 3 | 0 | View |
| 1989 | 3 | 0 | View |
| 1988 | 2 | 0 | View |
| 1987 | 2 | 0 | View |